15-20V / 90W / 2.1mm Barrel Plug (5.5mm outer diameter) / Positive Center

Compatible power bricks are available wherever ROW POWER modules are sold. You also may use your own power brick if it meets the following requirements:

15V to 20V DC
Positive center 2.1mm barrel plug
Minimum 30W output power
Low-noise output
IEC Cable not included